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<?php declare(strict_types=1); /* * This file is part of PHPUnit. * * (c) Sebastian Bergmann <sebastian@phpunit.de> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ namespace PHPUnit\Framework\Constraint; use PHPUnit\Framework\Exception; use PHPUnit\Framework\ExpectationFailedException; /** * @no-named-arguments Parameter names are not covered by the backward compatibility promise for PHPUnit */ final class TraversableContainsOnly extends Constraint { private readonly Constraint $constraint; private readonly string $type; /** * @param 'array'|'bool'|'boolean'|'callable'|'double'|'float'|'int'|'integer'|'iterable'|'null'|'numeric'|'object'|'real'|'resource (closed)'|'resource'|'scalar'|'string'|class-string $type * * @throws Exception */ public function __construct(string $type, bool $isNativeType = true) { if ($isNativeType) { $this->constraint = new IsType($type); } else { $this->constraint = new IsInstanceOf($type); } $this->type = $type; } /** * Evaluates the constraint for parameter $other. * * If $returnResult is set to false (the default), an exception is thrown * in case of a failure. null is returned otherwise. * * If $returnResult is true, the result of the evaluation is returned as * a boolean value instead: true in case of success, false in case of a * failure. * * @throws ExpectationFailedException */ public function evaluate(mixed $other, string $description = '', bool $returnResult = false): bool { $success = true; foreach ($other as $item) { if (!$this->constraint->evaluate($item, '', true)) { $success = false; break; } } if (!$success && !$returnResult) { $this->fail($other, $description); } return $success; } /** * Returns a string representation of the constraint. */ public function toString(): string { return 'contains only values of type "' . $this->type . '"'; } }
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